ASTM D2693-22 PDF

Overview

ASTM D2693-22: Standard Specification for Ethylene Glycol provides a comprehensive framework for the quality and properties of ethylene glycol intended for use in the preparation of surface coatings. Published by ASTM International, this standard ensures the chemical consistency, purity, and performance of ethylene glycol to meet industry requirements. Compliance with this specification helps manufacturers, suppliers, and end-users maintain quality assurance and regulatory conformity in coating applications.

Key Topics

ASTM D2693-22 addresses several critical parameters for ethylene glycol used in surface coating formulations. The standard outlines requirements and testing methods for the following characteristics:

• Apparent Specific Gravity: Ensures consistency in density at specified temperatures.
• Color (Pt-Co units): Sets a maximum limit for color, measured in platinum-cobalt units, to guarantee visual quality.
• Distillation Range: Defines the initial boiling point and dry point limits to confirm purity and composition.
• Water Content: Specifies the maximum allowable water content to reduce contamination risk.
• Acidity (as Acetic Acid): Limits the level of acidity to maintain product stability and compatibility.
• Diethylene Glycol Content: Restricts the presence of this impurity to ensure the efficiency of surface coatings.
• Iron Content: Sets a maximum limit to avoid negative impacts on final product quality.

The document references additional ASTM test methods and practices for sampling (ASTM E300), analysis (ASTM E202), and specific property measurements (e.g., ASTM D1209, D4052, D5386).

Applications

This specification is primarily used by manufacturers and suppliers of surface coatings, ensuring that ethylene glycol meets stringent technical requirements vital for product performance and regulatory compliance. Typical applications include:

• Paints and Surface Coatings: Ethylene glycol serves as a key ingredient in water-based and solvent-based coatings, providing essential physical properties such as viscosity, gloss, and drying time.
• Quality Control and Procurement: The standard specification assists quality assurance teams in purchasing and verifying ethylene glycol for industrial processes.
• Formulations Development: Chemists and formulators rely on ASTM D2693-22 to select materials that will perform optimally in their specific coating systems.
• Regulatory Compliance: Ensures materials comply with international trade and safety standards, supporting conformity with the World Trade Organization Technical Barriers to Trade (TBT) guidelines.

Related Standards

Several related standards support and complement ASTM D2693-22, ensuring a holistic approach to quality in ethylene glycol and coating applications:

• ASTM E202: Test Methods for Analysis of Ethylene Glycols and Propylene Glycols
• ASTM E300: Practice for Sampling Industrial Chemicals
• ASTM D1209: Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
• ASTM D4052: Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
• ASTM D5386: Test Method for Color of Liquids Using Tristimulus Colorimetry
• U.S. Federal Specification PPP-C-2020: Packaging requirements for chemicals

Practical Value

Using ASTM D2693-22 for ethylene glycol in surface coatings helps companies uphold industry best practices, ensure product consistency, and meet market expectations for performance and safety. The standard is integral for operations in paints, coatings, and chemical supply chains, where maintaining precise chemical properties directly impacts product reliability and customer satisfaction.

For more information or to obtain a copy of the standard, visit ASTM International.